Scorched Earth adds 11 new creatures, over 50 new items, a new boss, and a whole new map.

Creatures tamed and items recieved can be brought to the vanilla island and used by people with and without the expansion. Items from the DLC can also be spawned manually if you don't own the expansion pack. Two of the new creatures have multiple variations, namely the Jugbug (Water and Oil) and the Wyvern (Fire, Lightning, and Poison).